My Chinese ancestor, who lived in Fujian province during the end of the Ming Dynasty, refused to shave his head in submission to the Qing. For this reason, and to avoid execution, he migrated to Vietnam.
曹操 In Chinese history, there is a famous character named 曹操. I think his experience are same as Macbeth. Before he kill the emperor, he is a loyal general. But after he killed the emperor, he becomes the emperor with many ambitions， he wants to rule all over the China. Therefore, he becomes another person who is worried his life, doubt his lords. Fortunately, he is died by illness.